/****************************************************************************
 *
 * Copyright 2023 Samsung Electronics All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific
 * language governing permissions and limitations under the License.
 *
 ****************************************************************************/
/****************************************************************************
 * arch/arm/src/armv7-a/arm_vfork.h
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.  The
 * ASF licenses this file to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the
 * License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 ****************************************************************************/

#ifndef __ARCH_ARM_SRC_COMMON_ARM_VFORK_H
#define __ARCH_ARM_SRC_COMMON_ARM_VFORK_H

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <tinyara/config.h>

/****************************************************************************
 * Pre-processor Definitions
 ****************************************************************************/

#define VFORK_R4_OFFSET  (0*4)	/* Volatile register r4 */
#define VFORK_R5_OFFSET  (1*4)	/* Volatile register r5 */
#define VFORK_R6_OFFSET  (2*4)	/* Volatile register r6 */
#define VFORK_R7_OFFSET  (3*4)	/* Volatile register r7 */
#define VFORK_R8_OFFSET  (4*4)	/* Volatile register r8 */
#define VFORK_R9_OFFSET  (5*4)	/* Volatile register r9 */
#define VFORK_R10_OFFSET (6*4)	/* Volatile register r10 */

#define VFORK_FP_OFFSET  (7*4)	/* Frame pointer */
#define VFORK_SP_OFFSET  (8*4)	/* Stack pointer */
#define VFORK_LR_OFFSET  (9*4)	/* Return address */

#define VFORK_SIZEOF     (10*4)

/****************************************************************************
 * Public Types
 ****************************************************************************/

#ifndef __ASSEMBLY__
struct vfork_s {
	/* CPU registers */

	uint32_t r4;				/* Volatile register r4 */
	uint32_t r5;				/* Volatile register r5 */
	uint32_t r6;				/* Volatile register r6 */
	uint32_t r7;				/* Volatile register r7 */
	uint32_t r8;				/* Volatile register r8 */
	uint32_t r9;				/* Volatile register r9 */
	uint32_t r10;				/* Volatile register r10 */

	uint32_t fp;				/* Frame pointer */
	uint32_t sp;				/* Stack pointer */
	uint32_t lr;				/* Return address */

	/* Floating point registers (not yet) */
};
#endif

#endif							/* __ARCH_ARM_SRC_COMMON_ARM_VFORK_H */
